Merge #17165: Remove BIP70 support

8c6081a884cd0969160955ce8687d4d4ed074db3 compat: remove bswap_* check on macOS (fanquake)
2cba35ab38b492768e85bd77442a566dda169466 build: skip building OpenSSL lib_ssl (fanquake)
45a2d3c5526551c279b624e111fe83d1f30b10db build: remove OpenSSL from Qt build (fanquake)
befbc40eb5928ac20a85fd3446946895cd2e66cb build: remove EVP_MD_CTX_new detection (fanquake)
fcee10c2d028cba11416d902f5abf13fea7a65f4 build: remove SSL lib detection (fanquake)
c7f30dbca8034f70488cb494b4d1736c961301b9 gui: Update BIP70 support message (fanquake)
a3e810326d7e70a774ece9e9aa0c571cc9216aab build: remove BIP70 entries from macOS Info.plist (fanquake)
72fe13a58d5894afbaf1bb6789ee9b9b6576f20f gui: remove payment request file handling from OpenURI dialog (fanquake)
3548e4aac72e9148d41b440052a89d89328f7661 Remove BIP70 Support (fanquake)
1cb9a4e28cccd3056e2b8d9cdabc45bf3e4dd2a6 docs: remove protobuf from docs (fanquake)
67328bb7ca57fa0df867ec73dbeeb97d61450a4e build: remove protobuf from depends (fanquake)

Pull request description:

  This removes [BIP70](https://github.com/bitcoin/bips/blob/master/bip-0070.mediawiki) support. It also removes OpenSSL linking from Qt and building OpenSSLs `lib_ssl` in depends, as well as SSL lib detection from the build system. It's something that I'd optimistically like to do for `0.20.0`.

ACKs for top commit:
  laanwj:
    Code review ACK 8c6081a884cd0969160955ce8687d4d4ed074db3
  MarcoFalke:
    ACK 8c6081a884cd0969160955ce8687d4d4ed074db3
  fjahr:
    ACK 8c6081a

Tree-SHA512: 9dd9153afa4eca1a795f983e5b31f5fee9fa9a064c2a95d2f98810689add3ad0bf221c4608282299e66e4d1ec31cd556d4b16eea55de7912c3b9931f64735883

1 files changed, 0 insertions, 44 deletions

diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index 5bc72125f6..08ea1c2409 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -143,31 +143,6 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
     {
         if (rcp.fSubtractFeeFromAmount)
             fSubtractFeeFromAmount = true;
-
-#ifdef ENABLE_BIP70
-        if (rcp.paymentRequest.IsInitialized())
-        {   // PaymentRequest...
-            CAmount subtotal = 0;
-            const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
-            for (int i = 0; i < details.outputs_size(); i++)
-            {
-                const payments::Output& out = details.outputs(i);
-                if (out.amount() <= 0) continue;
-                subtotal += out.amount();
-                const unsigned char* scriptStr = (const unsigned char*)out.script().data();
-                CScript scriptPubKey(scriptStr, scriptStr+out.script().size());
-                CAmount nAmount = out.amount();
-                CRecipient recipient = {scriptPubKey, nAmount, rcp.fSubtractFeeFromAmount};
-                vecSend.push_back(recipient);
-            }
-            if (subtotal <= 0)
-            {
-                return InvalidAmount;
-            }
-            total += subtotal;
-        }
-        else
-#endif
         {   // User-entered bitcoin address / amount:
             if(!validateAddress(rcp.address))
             {
@@ -240,21 +215,6 @@ WalletModel::SendCoinsReturn WalletModel::sendCoins(WalletModelTransaction &tran
         std::vector<std::pair<std::string, std::string>> vOrderForm;
         for (const SendCoinsRecipient &rcp : transaction.getRecipients())
         {
-#ifdef ENABLE_BIP70
-            if (rcp.paymentRequest.IsInitialized())
-            {
-                // Make sure any payment requests involved are still valid.
-                if (PaymentServer::verifyExpired(rcp.paymentRequest.getDetails())) {
-                    return PaymentRequestExpired;
-                }
-
-                // Store PaymentRequests in wtx.vOrderForm in wallet.
-                std::string value;
-                rcp.paymentRequest.SerializeToString(&value);
-                vOrderForm.emplace_back("PaymentRequest", std::move(value));
-            }
-            else
-#endif
             if (!rcp.message.isEmpty()) // Message from normal bitcoin:URI (bitcoin:123...?message=example)
                 vOrderForm.emplace_back("Message", rcp.message.toStdString());
         }
@@ -271,10 +231,6 @@ WalletModel::SendCoinsReturn WalletModel::sendCoins(WalletModelTransaction &tran
     // and emit coinsSent signal for each recipient
     for (const SendCoinsRecipient &rcp : transaction.getRecipients())
     {
-        // Don't touch the address book when we have a payment request
-#ifdef ENABLE_BIP70
-        if (!rcp.paymentRequest.IsInitialized())
-#endif
         {
             std::string strAddress = rcp.address.toStdString();
             CTxDestination dest = DecodeDestination(strAddress);